Improvement in coffee-pots



tititni E. BLUNT, Jn., or NEW YORK; N. YI, Ass-Ionen To- HENRY-P. f

by y velfov met aanstaat MMX was NICHOLS, TRUSTEE.

Letters Patent No. 83,686. 'l Verve'ntbcr 3, 1868.`

.. mrnovnmrm corran-Pore. i f

` 'l'he Schedule 'telex-red te T'all /we concern.-

Be it kno 'n that l, E. BLUNT, Jr., of the city and county oi New York, .in the Stai, of New York, have invented certain new and usefl Improvements in Gofbe-Pots,' which apparatus maybe used also for making other decoctions; and I do heieby declare that `the following is a full and exact description thereof.

Many efforts have been heretofore 11i-ade to aid in i determining the proper period-ier Aboiling coee by theaid of a reservoir of water held ata higher level; and coffee-pots have been nnule ,\vith whistles for produg an audible sound by the escape of steam when the proper period approaches. I

My invention combines the advantages due to several of these different constructions, and avoids much of the objection due to each.

' I will iiist describen-'hat I c'onsider the best means of carrying out my invention, and will afterwards-de scribe the points which I believe to benew therein'.`

The accompanying drawings form a part of this speciication. 'Figure 1 is asid'e elevation;

` Figure 2- is a central vertical section; and

Figure 3 is a plan view. Similar letters of reference indicatelike parts in all thejigures.

A is the base or main body of the coii'ee-pot, and a is the nose. A strainer, B, is provided to 'cover the root of the nose, and by mounting it ata'little distance within the body of the coiee-pot, instead of in clos proximity tothe' nose, I obtain vroom for a large area of strainer. I make the` strainer, thus arianged,of such area that it is not likely to be stopped by the ne grounds; or, if by any chance the coffee-grounds are pressed against the strainer, a very slight agitation of the fluid will 'remove the grounds. When the grounds are heldagainsta very limited' surface, they' are liable toA choke the passage and cause a great difference of level'of the iuid on the two sides of the strainer'r'but' when the strainer is large, as I arrange it, the-difier- 'ence oflvel is never great, andthe grounds are,con sequcntly, held against the strainerwith-a very gentle force. i Moreover, by reason of the great extent of my strainer,v there is almost ceitaiil to be a sutlicient ow of the coee or other decoctio'n through the perforar 'tions therein, even though the grounds be allowed to remain thickly accumulated overits entire surface. O is a separate vessel, adapted to contain cold water,

" and to be supported on the top of the body A. Its bottom proper, indicated by c, is supported at a little distance above the top of the coi'ee-p'ot A. Another bottom, c, is' fixed alittle distance below it, anda whistle, D, is fixed in a hole, c, therein, vas represented; There is ja passage" from this whistle, D, thropgh the side of the vessel- O, between bthe top of the main body A and the l true'bottoln c, as indicated and described,

A short pipe, E, connects the true bottom, c, and the falsebottom, c l 'This'l'iipe is controlled hya tapering rplug, G, which may be operated by the stem g, leadin up through the cover M of the vessel C. It is gnid by running through two bearings in this cover, as in dic-ated by mim. g

' Operation.'

The coii'ee is introduced, with a portion of the Water,

' into the 'body A.- This water may be hot or cold ttiist, but' 1 prefer to have it cold. The snperior vesselO isthen Vplaced on the body/A. The plug G is fitted tightly inthe short tube E. The remainder of the water is placed in the superior vessel, and the cover M is applied. All the water may at this period be cold. The coffee-pot is now placed on the coals, or on Athe stove, vor other llating-means; and when the water boils in the vessel A, the steam rises through the .whistle D, and escapes tllrongh the space between thd false bottom c and true bottom c. The steam rising through the whistle, may, ifpreferred,'be allowedto 1 diffusetself.thronghthe snasehetweeir theagenda t'oni and the yfalse bottom, and to escapjcvat all theapertures; but' `such 'a circulation ofthe steam tends to heat the water in the upper'vessel C more' rapidly y I prefer,I therefore, to provide av pipe, or small contracted passage, leading. from the 1 hole c2 to one. of the vents designated at c, and to al''-f than is, desirable.

low the steam from whistle to escapethrough this pas? sage alonc,th1 1s preser\ 'i ng a simple air-space between the true bottom and the false bottom, overa great portion of the space between 'theni."` The air in this 4space being a non-conductor, greatly retards the transmission of heat from the false bottom to the true bot# tom, and consequently preserves the water in the up- I per vessel at a low temprature, alter the boiling has proceeded for a s'ucient period.

When the steam issues rapi duces a loud sound, thus calling the attention ot"- the attendant, and the subsequent -operationsumay be. ef-

fected immediately, or after the lapseof such a period, v

say-about a half minute, as may be vfound desirable to produceA the best coffee. At such peri'od the attendant raises` the plug G by the stem'g, and allows the cold water in the vessel Cto descend. This coldwater has the effect of settling the coffee, and .its function of condensing a portion-of the steamor'aroma at this period may also be of some impoitance. .I

1 prode a cover, K, held by the chain k, which serves to stop tightly .the noseof the coii'ee-pot# I am awarev that the several devices, herein showni and described, when taken separately, are,- of themselves, not new.-

lVliat I claim, v The combination off the vessels VA and O, double partition ctc', valve and. rod'Gfand whistle D., all constructed and operating substantially as herein shown n. BLUNT. Je

Witnesses:

THOMAS D. SrsrsoN, OAMRBELL O. L rvmes.

dly, the whistle D'y pro-l 

